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Dan Shumow is a cryptographer working at Microsoft Research.

At the CRYPTO 2007 conference rump session, Dan Shumow and Niels Ferguson presented an informal paper describing a kleptographic backdoor in the NIST specified Dual_EC_DRBG cryptographically secure pseudorandom number generator. The backdoor was confirmed to be real in 2013 as part of the Edward Snowden leaks.

Dan Shumow co-authored an algorithm for detecting SHA-1 collisions with Marc Stevens, prior to the demonstration of a SHA-1 collision.

References

1. Shumow, Dan; Ferguson, Niels. "On the Possibility of a Back Door in the NIST SP800-90 Dual Ec Prng" (PDF).
2. "SHAttered". shattered.io.

External links

• Dan Shumow - Microsoft Research

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